Insects fall into two main ‘divisions’ when it comes to their development from egg to adult. In some insects such as butterflies, moths, beetles and flies, eggs hatch into larvae (sometimes called caterpillars or maggots) and these then metamorphose via a chrysalis (or pupae) in the adult animal.
Other insects such as grasshoppers and crickets develop gradually – when the egg hatches the individual looks like a mini version of the adult and then gradually grows shedding its exoskeleton via series of instars.
This is an adult (final instar) speckled bush-cricket photographed in the same place last summer. It is around 16mm in length excluding the antennae. Bush-crickets can go through up to nine instars before adulthood.